LUSHIH RV Slide-Out Support Stabilizer Jacks 2-Pack 15"–26" Adjustable Zinc-Coated Steel, 5,000 lb Capacity

LUSHIH RV Slide Out Support Trailer Stabilizer Jacks are adjustable, zinc-coated steel supports that reduce slide-out wobble and provide up to 5,000 lb of support per jack.

When parked, many RV slide-outs can rock or sag under movement inside the coach. These LUSHIH quick-lift stabilizer jacks were engineered to add firm, temporary support beneath slide-out frames so doors, furniture and appliances stay steady while you live or work in your trailer. Each jack combines a threaded triangular screw with an M18 nut and a U-shaped top plate to give a compact, heavy-duty solution that resists rust and accepts a protective 2x4 block for softer contact.

How much load can each stabilizer jack handle?

Each LUSHIH stabilizer jack is rated to support a maximum static lift capacity of 5,000 lb (2,267 kg). The travel range covers 15" to 26" so you can match common slide-out heights and find the best contact point under the frame.

• Max lift capacity: 5,000 lb per jack
• Travel range: 15"–26" (adjustable)
• Working range (usable stroke): 11"
• Top plate dimensions: 5.94" x 2.95" x 0.9" U-shaped

Are these stabilizer jacks durable outdoors and on the road?

The jacks are manufactured from heavy-duty steel and finished with a zinc powder coating to resist corrosion and surface wear. That finish helps extend service life when the jacks are stored under the trailer or used seasonally in varying weather conditions.

• Heavy-gauge steel construction for structural strength
• Zinc powder-coating to protect against rust and chips
• Threaded components engineered for repeatable adjustment
• Suggested use of a 2x4 block to protect trailer frame contact

How do I use the LUSHIH slide-out stabilizer jacks safely?

These jacks are intended to stop slide-out movement and reduce rocking — not to lift the trailer off its wheels or level the coach. Position a jack beneath the slide-out frame, extend until snug, and avoid using them as primary lifting devices. Keep clearances in mind while operating and always follow the included safety recommendations.

• Place jack under slide-out frame and align U-shaped top
• Extend using the triangular threaded screw and M18 nut until contact is firm
• Use a 2x4 between jack top and frame to prevent damage
• Do not attempt to lift trailer wheels or level the vehicle with these jacks

Who is this for? RV owners, full-time campers, weekend travelers and service technicians who want a compact, strong solution to stabilize slide-outs will benefit from the LUSHIH pair. These jacks suit travel trailers, camper conversions and motorhomes where reducing interior movement matters while parked. The two-pack covers common installations and is best paired with routine safety checks and careful positioning for reliable, temporary support.